Title
Robust image watermarking based on discrete wavelet transform-discrete cosine transform-singular value decomposition.
Abstract
A robust image watermarking scheme based on the discrete wavelet transform (DWT), discrete cosine transform (DCT), and singular value decomposition (SVD) is proposed. The cover image is transformed from the RGB color space into the YCbCr color space to obtain a gray-level image. The DWT is then applied to the gray-level image to obtain a low-frequency (LL) subband image. Next, the DCT is applied to the LL subband image to obtain the frequency components. Finally, SVD is used on the obtained frequency components to embed the watermark. Experimental results show that the proposed method is robust against cropping, rotation, Gaussian noise additions, histogram equalization, JPEG compression, and JPEG2000 compression attacks. Therefore, the proposed method is very suitable for applications of transaction tracking, data authentication, and video surveillance. (C) 2012 SPIE and IS&T. [DOI: 10.1117/1.JEI.21.3.033005]
Year
DOI
Venue
2012
10.1117/1.JEI.21.3.033005
JOURNAL OF ELECTRONIC IMAGING
Keywords
Field
DocType
digital watermarking
Computer vision,Digital watermarking,Pattern recognition,Computer science,Discrete cosine transform,RGB color space,Watermark,Artificial intelligence,Discrete wavelet transform,Quantization (image processing),Histogram equalization,Wavelet packet decomposition
Journal
Volume
Issue
ISSN
21
3
1017-9909
Citations 
PageRank 
References 
8
0.60
13
Authors
3
Name
Order
Citations
PageRank
Wu-Chih Hu124427.01
Wu-ton Chen26210.87
Ching-Yu Yang36110.92